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Filtration Operator Jobs in California (NOW HIRING)

Hilmar Cheese Company

Filtration Operator

Hilmar, CA · On-site

$25.84 - $30.26/hr

A Typical Day The Filtration Operator is primarily responsible for operation of the liquid process and associated equipment. Job Responsibilities * Operation of the Separators to insure good fat ...

New

Hilmar Cheese Company, Inc.

Filtration Operator

Hilmar, CA · On-site

$25.84 - $30.26/hr

A Typical Day The Filtration Operator is primarily responsible for operation of the liquid process and associated equipment. Job Responsibilities * Operation of the Separators to insure good fat ...

Clean Harbors

Water Filtration Specialist

Stockton, CA · On-site

$120K - $150K/yr

The Clean Harbors Stockton, CA branch is seeking a Water Filtration Specialist to support our ... Experience managing field personnel including superintendents, operators, and laborers. * Ability ...

Parker

Production Operator I

Oxnard, CA · On-site

$17.75 - $21.50/hr

Our engineering expertise in filtration, bioprocess containers, single use assemblies and sensors ... The Production Operator will be responsible for operating machinery, monitoring production ...

Mativ

Utility Operator

El Cajon, CA · On-site

$18.72/hr

Utility Operator Mativ is a global leader in specialty materials headquartered in Alpharetta ... The company's two segments, Filtration & Advanced Materials and Sustainable & Adhesive Solutions ...

Florence Filter

Machine Operator

Compton, CA · On-site

$20 - $25/hr

Machine Operator Position at Florence Filter Florence Filter is seeking a dedicated Machine ... filtration products to help keep the air we breathe clean. Our air filters are present in air ...

Mativ Holdings, Inc.

Utility Operator

El Cajon, CA · On-site

$18.72/hr

... Operator is responsible for successful operation of the finishing production of the parts on the ... The company's two segments, Filtration & Advanced Materials and Sustainable & Adhesive Solutions ...

US Department of the Interior

CA

$31.60/hr

The primary purpose of this position is to serve as the "operator in charge" of a water treatment plant or facility where the water requires both non-filtration and filtration processes to change the ...

New

Sartori

Relief Operator III - 2nd Shift

Crescent City, CA · On-site

$21.25 - $28.75/hr

SUMMARY The Relief Operator (RO) III - Powders is responsible for the safe, efficient, and sanitary ... This includes, but is not limited to, separators, heat treatment systems, filtration units ...

Monterey Bay Aquarium

Systems Operator I

Monterey, CA · On-site

$29.86 - $36.54/hr

... operating ranges, and meter and gauge readings. Preferred Knowledge, Skills, & Abilities (KSAs ... Understanding of mechanical, chemical, and biological filtration as it applies to aquarium systems

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Filtration Operator information

See California salary details

$10

$22

$38

How much do filtration operator jobs pay per hour?

As of Sep 5, 2026, the average hourly pay for filtration operator in California is $22.13, according to ZipRecruiter salary data. Most workers in this role earn between $16.95 and $24.48 per hour, depending on experience, location, and employer.

What is a filtration operator?

A Filtration Operator is responsible for operating and maintaining filtration systems used in manufacturing, water treatment, or other industrial processes. Their duties include monitoring equipment performance, adjusting settings to ensure optimal filtration, and performing routine maintenance to prevent system failures. They may also test samples for quality control and follow safety protocols to maintain a clean and efficient operation.

What are the typical working conditions and daily responsibilities for a filtration operator?

Filtration Operators usually work in industrial plants, water treatment facilities, or manufacturing sites, often on rotating shifts that may include nights and weekends. Daily responsibilities involve monitoring filtration equipment, adjusting controls, conducting quality tests on filtered materials or water, recording data, and performing routine maintenance. Operators frequently collaborate with maintenance technicians and supervisors to troubleshoot and resolve equipment issues. While the work environment may involve exposure to noise, chemicals, and physical activity, employers place a strong emphasis on safety practices and protective equipment. This hands-on role is ideal for individuals who enjoy practical tasks and contributing directly to essential operational processes.

What are the key skills and qualifications needed to thrive in the filtration operator position, and why are they important?

To thrive as a Filtration Operator, you need hands-on mechanical aptitude, attention to detail, and a high school diploma or equivalent, often with training in industrial operations or water treatment. Proficiency with filtration systems, pumps, pressure gauges, and familiarity with safety protocols and certifications such as OSHA or water treatment operator licenses are typically required. Strong problem-solving skills, teamwork, and effective communication help Filtration Operators excel, especially when troubleshooting issues or collaborating with maintenance staff. These skills and qualifications are crucial to ensure safe, efficient, and compliant operation of filtration systems in various industrial settings.

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For Filtration Operator jobs in California, the most frequently searched job titles are:

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The top searched job categories for Filtration Operator jobs in California are:

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Filtration Operator jobs near you
Infographic showing various Filtration Operator job openings in California as of August 2026, with employment types broken down into 46% Full Time, 52% Part Time, 1% Contract, and 1% Nights. Highlights an 99% Physical, and 1% Remote job distribution, with an average salary of $46,029 per year, or $22.1 per hour.

Filtration Operator

Hilmar Cheese Company

Hilmar, CA • On-site

$25.84 - $30.26/hr

Full-time

Posted 3 days ago

New

Job description

At Hilmar Cheese Company we improve lives around the world through wholesome dairy products. Since our founding in 1984, Hilmar Cheese Company has been committed to innovation and sustainability. Our state-of-the art production facilities convert an abundance of locally sourced high-quality milk into a variety of nutritious cheeses, whey protein and lactose. The Cheese and Ingredients that we produce create a wide variety of retail and food service products from sliced and shredded cheeses, to protein supplements and infant formula. We are a trusted partner to premier food and beverage brands in more than fifty countries helping bring their vision into reality.

Throughout our decades of success and growth we have remained committed to our mission and values and these principles unite our people and guide all that we do.

A Typical Day

The Filtration Operator is primarily responsible for operation of the liquid process and associated equipment.

Job Responsibilities
  • Operation of the Separators to insure good fat separation and the proper fat percentage in the Whey Cream.
  • Operation of the whey H.T.S.T.'s in accordance with State and Federal Guidelines.  Operation inclusive of:  maintaining correct flow, temperature and chart changing.
  • Pasteurizers License must be obtained within 12 months.
  • Operation of the filtration equipment (UF's, DF's, and MF).  Operation inclusive of:  Constant monitoring and adjusting of protein, solids, and flow rates by conducting hourly checks and sampling according to check sheet.  
  • Ability to learn and operate computer related controls.
  • Maintain and monitor all QC and production programs per HCC standards.
  • Ongoing Improvement of knowledge and understanding of all liquid process equipment and protein in general.
  • Monitoring of all additives to the whey and retentate streams to insure the proper functionality of the various products.
  • Responsible for maintaining equipment and work environment cleanliness.
  • Responsible for proper product handling to insure minimum product loss.
  • Responsible for understanding and conducting CIP's and other cleaning steps according to plant procedures.
  • Responsible for following GMP guidelines and all company policies as outlined in the employee handbook.
  • Active participation and ownership in your training and development program and associated activities, classes and events, which will be held before, during, after shifts and during scheduled days off.  
  • Help coach and train teammates and participate in on the job, buddy training.
  • Place high priority on food safety and sanitation by understanding and executing HCC's food safety and sanitation policies and procedures. This includes communicating any food safety incident, observation, or opportunity to your leadership team or teammates as well as participating in food safety and sanitation root cause analysis and improvement activities when required. 
  • Prioritize safety above all other job duties by having a safety first approach at all times. This includes reporting any safety issues, observations, opportunities to your teams and follow up. 
     
What You Will Need
  • English skills must be proficient to understand, read, write and speak English
  • Must be able to work weekends, holidays and rotating shifts (day/swing/graveyard)
  • Ability to lift up to 60lbs
  • Basic computer skills
What Will Put You Ahead
  • High School diploma or GED from an accredited institution
  • SAP experience
  • Dairy manufacturing experience
  • Active/past member of departmental safety team
  • Understanding of membrane filtration system operations
  • Skilled in any Protein Level 1 or 2 positions
Physical Demands & Work Environment

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.  Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee will be required to:

  • Stand, walk, use hands to finger, handle or feel and reach with hands and arms, climb or balance, stoop, kneel, crouch or crawl and talk or hear.
  • Stand and walk almost the entire workday.
  • Employees must be physically capable of working in any of the job tasks within the cheese plant.
  • Required to work at heights and in fairly small areas.
  • Pushing, pulling, reaching, bending, stooping, squatting, kneeling, handling and grasping, twisting/turning, repetitive bending.

Food safety is a companywide responsibility and each employee must know their role in the manufacture and distribution of safe, wholesome, and high quality products.

This description is a general statement and does not include other duties as assigned

Hilmar Cheese Company, Inc. is an Equal Opportunity Employer/EEO. We participate in E-Verify.

English Information | Spanish Information

Salary Range: USD ($25.84 - $30.26) ANN 

The final compensation offered within this range will depend on factors including the applicant's education, experience, knowledge, skills, and abilities, as well as internal equity and alignment with market data.

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